[ftbench] rebase with the updated code

src/tools/ftbench/ftbench.c

@@ -958,6 +958,9 @@
       "\n"
       "Usage: ftbench [options] fontname\n"
       "\n"
+      "  -a \"axis1 axis2 ...\"\n"
+      "            Specify the design coordinates for each, if any,\n"
+      "            Multiple Master axis at start-up.\n"
       "  -C        Compare with cached version (if available).\n"
       "  -c N      Use at most N iterations for each test\n"
       "            (0 means time limited).\n"
@@ -1571,4 +1574,4 @@
   }
 
 
-/* End */
+/* End */